Wrench



D. WILGOX.

WRBNGH Patented Aug. 20,1895.

(No Model.)

No. 544,709. I

' UNITED STATES" PATENT OFFICE.

DARIUS WILCOX, OF MEOHANICSBURG, PENNSYLVANIA.

WRENCH.

SPECIFICATION forming part of Letters Patent N 0. 544,709, dated August20, 1895.

' Application filed September 10,1894. serial No. 622.554. on model.)

To all whom it may concern.-

Be it known that I, DARIUS WILOOX, a citizen of the United States,residing at Mechanicsburg, in the county of Cumberland and State ofPennsylvania, have invented certain new and useful Improvements inWrenches;

' and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enableothers skilled in theart'to which it appertains to make and use the same.

This invention relates to certain improvements in wrenches; and itconsists of a novel form of blank, a peculiarlyeconstructed handle andjaw, and a novel method of making the same.

The objects of the invention are to simplify and cheapen theconstruction of wrenches, and also to produce a wrench which is not onlyof less cost, but at the same time equal, if not superior, to those nowin use.

Referring to the drawings forming a part of this specification, Figure 1isa perspective view of the blank from which the handle and one jaw ofthe wrench are formed. Fig. 2 isa similar view of a slightly differentform of blank. Fig. 3 is a perspective view of the completedwrench,partly broken away. 7

On the drawings like numerals of reference indicate corresponding partsin the different views.

1 represents the handle of the wrench, on the end of which is formed thefixed jaw 2, and it is of the usual configuration. It is about twice thelength of the handle and jaw, and is formed all in one piece, as in Fig.1, or in two parts, as in Fig. 2.

Near the central portion of the handle, and about the widest partthereof, are apertures 3 3 to receive the nut or sleeve which operatesthe movable jaw. Extending from the apertures 3 3 are grooves orchannels 4 4, which grooves are to receive the shank of the movablejawof the wrench, and they extend through the fixed jaw thereof and areabout ,half the depth of the diameterof the shank.

From the opposite side of-the apertures 3 3, extending nearly to the endof the handle, aregrooves or channels 5 5 to receive the threaded end ofthe shank of the movable jaw. The grooves or'channels 4 4. arepreferably rectangular and grooves 5 5 semicircular; but while theseare'the best forms they are not absolutely essential. In Fig. 1 of thedrawings the two members comprising the handle are connected by a webbrought together, by superimposing on one the other with the channels orgrooves facing each other to form the handle,they may be welded by ablow or squeeze-as by electrolysis, for example. These projections mayalso be formed at one end when the blank shown in Fig. 1 is used, butare not absolutely essential.

When the blank shown in Fig. 1 is used to form the handle, it is bent onthe dotted line so, and as one end of the blank is the counterpart ofthe other, it will be seen that a rootangular passage is formedextending from the face of the lower jaw 2 to the aperture 3 for thethumb-nut to receive the shank of the movable jaw. .The web where theblank is bent forms the face ofthe fixed jaw.

10 represents the movable jaw, and 11 is its shank. This jaw and shankare'of the customary form. The shank is rectangular as far as the pointin the handle where the thumb-nut is used, and the shank may be providedwith any suitable scale. Its lower end is cylindrical and isscrew-threaded to engage with the nut, which is tapped to receive it, asusual, and by revolving the nut the movable jaw is operated. The handleand fixed jawI sometimes weld through intervention of the elevations orprojections 7 8 atone end and rivet or braze the other end, or I omitthe welding projections altogether from the members of the blank andsecure them together by riveting or other suitable means.

The method of constructing the blank and handle with its fixed jaw is asfollows, viz: The blank, approximately of theform intended, is placed inadie of such'configuration as to forth the grooves, which are forged orswaged therein. By this operation a flash or fin is thrown out at theedges. The blank is next passed through a trim ming-die, by means ofwhich the flash or fin is removed. The parts are then ready to beputtogether, either by bending ,one upon the other, as already described,or by superimposing one part upon the other, as already stated. Aproper-shaped mandrel is inserted in the shank-cavity, and the whole isstruck infinishing-dies, and the handle thus treated is finishedperfectly on the inside and practically smooth on the outside, requiringbut little, if any, further finish on the outside.

The wrench may be constructed as an ordinary nut-wrench, or it may beformed with a knife-roll, or the jaws otherwise made for cutting pipe ina well-known manner, as the invention is equally well adapted for a nutor pipe wrench.

Minor changes in the details of construction maybe made withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A blank for wrenches comprising two members, the counterpart of eachother, having the handle and the fixed jaw integral therewith; struck orswaged grooves or channels for the shank of the movable jaw, holes forthe nut and elevations or projections on the inner faces of the membersby means of which the two parts may be welded substantially asdescribed.

2. A blank for wrenches comprising two members, the counterpart of eachother having the handle and the fixed jaw integral; struck or swagedgrooves or channels for the shank of the movable jaw holes for the nutand means whereby the parts may be secured together, substantially asdescribed.

3. That improvement in the art of manufacturing the handle and fixed jawof a wrench, comprising two members, which consists in forging orswaging grooves or channels on the inner faces thereof, and projectionsfor welding removing the flash or fin formed by the swagingsuperimposing the two members upon each other with their channels facingeach other-welding the jaw end, and riveting or brazing the end of thehandle and completing the operation in finishing dies substantially asdescribed.

In testimony whereof I affix my signature in presence'of two witnesses.

DARIUS VVILCOX. [L. s]

Witnesses:

CHARLES F. AUoK, JOSHUA R. SERFASS.

